AES 7788 Series RF Subscriber Unit ─ Installation and Operation Manual
AES Corporation 42 40-7788, Rev 6, August 30, 2016
6 Maintenance, Compliance, Warranty and Repair
Once installed and normal operation is confirmed, there is typically little maintenance
required. Monitoring the automatic test messages will confirm proper RF operation.
Batteries should be periodically tested to be certain they have sufficient capacity to
operate the system as needed.
6.1 Troubleshooting
The most common causes of an RF failure or trouble are due to issues with the
transmission line including but not limited to the antenna type, antenna location,
coax, connectors, and transceiver. Antennas in close proximity to metal or with
conductive material blocking or reflecting the transmitted signal would be at the top
of the list. Observe the RX light on the main circuit board. If it is on steady or most
of the time you may be receiving some RF or electrical interference. Try different
locations for the antenna or use a remote long range RF antenna. Try replacing the
transmission line components such as a new transceiver, coax and antenna.
Problems on the circuit boards usually require returning the defective unit to AES for
service.
6.2 Parts List
The standard 7788F Subscriber includes the following items.
o Enclosure
o 7788F Circuit board assembly
o 7085UE Transceiver at licensed or authorized frequency
o 7214 Tamper Resistant Antenna Assembly and cable
o 40-7788 Instruction manual
o 02-0029-EOL Qty. Eight 2.2K Ohm E.O.L. Resistors
6.3 Contact Information
AES Corporation
285 Newbury Street
Peabody, Massachusetts 01960 USA
Website: http://www.aes-intellinet.com
AES corporate Phone: (800) 237-6387 (800) AES-NETS
USA (978) 535-7310
Fax: USA (978) 535-7313
Email: Check Website for latest email addresses
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